Samlex Europe PST-300S-12E Manual Del Propietário página 37

SECTION 8 | SECTION 8 |
8.5 AC SIDE CONNECTIONS
Table 8.4 Recommended Sizing of AC Output Wiring and Breaker
Model No.
continuous AC
WARNING! Preventing Paralleling of the AC Output
output current
1. The AC output of the inverter cannot be synchronized with another AC
source and hence, it is not suitable for paralleling. The AC output of the
inverter should never be connected directly to an electrical Panelboard / Load
Center which is also fed from the utility power/ generator. Such a connection
will result in parallel operation and AC power from the utility / generator will
(1) be fed back into the inverter which will instantly damage the output section
PST-300 -12
Panelboard / Load Center is being fed from the utility power / generator and
the inverter is required to feed this panel as backup power source, the AC
8.6 GROUNDING TO EARTH OR TO OTHER DESIGNATED GROUND
to a manual selector switch / Automatic Transfer Switch and the output of
the manual selector switch / Automatic Transfer Switch should be connected
For safety, ground the metal chassis of the inverter to the Earth Ground or to the other
to the electrical Panelboard / Load Center.
designated ground (for example, in a mobile RV, the metal frame of the RV is normally
designated as the Negative DC Ground). A chassis Grounding Lug (19, Fig 6.1c) has been
2. To prevent possibility of paralleling and severe damage to the inverter, never
provided for grounding the metal chassis of the inverter to the appropriate ground.
use a simple jumper cable with a male plug on both ends to connect the AC
output of the inverter to a handy wall receptacle in the home / RV.
When using the inverter in a building, connect a 2.5 mm
from the above equipment grounding lug to the Earth Ground connection ( a connection
8.5.1 AC Output Connection Through Ground Fault Circuit
that connects to the Ground Rod or to buried metallic water pipe or to another connection
Interrupter (GFCI)
that is solidly bonded to the Earth Ground ). The connections must be tight against bare
metal. Use star washers to penetrate paint and corrosion.
An un-intentional electric path between a source of current and a grounded surface
is referred to as a "Ground fault". Ground faults occur when current is leaking some-
When using the inverter in a mobile RV, connect a 2.5 mm
where. In effect, electricity is escaping to the ground. How it leaks is very important. If
from the above Chassis Grounding Lug to the Main Grounding Bus Bar of the RV (bonded
your body provides a path to the ground for this leakage (dry human body has a low
to the vehicle chassis). The connections must be tight against bare metal. Use star washers
resistance of
to penetrate paint and corrosion.
or electrocuted. A Ground fault Circuit Interrupter (G f CI) protects people from electric
shock by detecting leakage and cutting off the AC source.
The AC output of this inverter is available through a NEMA5-20R Gf CI Duplex Recepta-
cle (6, fig 6.1a) and also through hardwiring terminal connections located in
partment (13,
(longer rectangular slot) and the Neutral Terminal "N" of the Terminal Block for AC out-
put hardwiring (13, fig 6.1b) are internally bonded to the metal chassis of the inverter.
There is a Green indicator light on the GfCI outlet that will be lighted when the Gf CI is
operating normally. The light will switch
The Gf CI is provided with the following buttons:
- Reset Button: In case the GfCI is tripped, it can be reset by pressing the "Reset Button".
NOTE: For the Reset Button to operate, the inverter has to be in ON condition and
should be outputting AC power (no
40 | SAMLEX AMERICA INC.
Installation Installation
Maximum Minimum Ampac-
ity of AC output
Line and Neutral
conductors as per
NEC (125% times
(2)
13A
only around 1 K you could be injured, burned, severely shocked
fig 6.1a) behind the Gf CI receptacle. The Neutral slot of this receptacle
Maximum size
of external AC
output Breaker
Column 3)
Column 2)
(3)
16.25
2
insulated st
2
ohm),
off Gf CI is tripped.
fault / shutdown condition).
Minimum size of
Line and Neutral
conductors based
(Based on on Ampacity
at Column 3
(Ampacity based
on conductor tem-
perature of 90°C)
(4)
16A
a r n d e d c o
insulated st a r n d e d
if the
SAMLEX AMERICA INC. | 37
(5)
2.5 mm
2
p p r e w i e r
c o p p r e w i e r
a com-
37
37